package com.nowcoder.community.controller;

import com.nowcoder.community.service.DataService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import java.util.Date;

/**
 * @author 韩
 * @version 1.0
 */

@Controller
public class DataController {

    @Autowired
    private DataService dataService;

    //统计页面
    @RequestMapping(path = "/data", method = {RequestMethod.GET, RequestMethod.POST})
    public String getDataPage() {
        return "/site/admin/data";
    }

    //统计网站UV
    @RequestMapping(path = "/data/uv", method = RequestMethod.POST)
    //前端页面传送的日期是字符串格式，所以要使用@DateTimeFormat来转成要用的日期格式
    public String getUVData(@DateTimeFormat(pattern = "yyyy-MM-dd") Date start,
                            @DateTimeFormat(pattern = "yyyy-MM-dd") Date end,
                            Model model) {

        long uv = dataService.calculateUV(start, end);
        model.addAttribute("uvResult", uv);
        model.addAttribute("uvStartDate", start);
        model.addAttribute("uvEndDate", end);

        return "forward:/data";
    }

    //统计网站DAU
    @RequestMapping(path = "/data/dau", method = RequestMethod.POST)
    public String getDAUData(@DateTimeFormat(pattern = "yyyy-MM-dd") Date start,
                             @DateTimeFormat(pattern = "yyyy-MM-dd") Date end,
                             Model model) {

        long dau = dataService.calculateDAU(start, end);
        model.addAttribute("dauResult", dau);
        model.addAttribute("dauStartDate", start);
        model.addAttribute("dauEndDate", end);

        return "forward:/data";
    }
}
